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Income Taxes - Additional Information (Detail) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 | Dec. 31, 2011 | Dec. 31, 2010
Income Tax Disclosure [Abstract] |  |  |
Valuation allowance | $ 17,800,000 | $ 14,400,000 |
Percentage of change in ownership for operating loss carry forward |  |  | 50.00%
Annual limitation on use of pre-ownership changes losses | 284,000 |  |
Net operating loss carryforwards | 36,200,000 |  |
Carryforward period of ownership | 20 years |  |
Utilize pre-ownership change losses | 5,600,000 |  |
Write-off deferred tax assets |  | $ 10,400,000 |

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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